Now to explain why Ham radio guys can be a whole lot more useful that academic & archival historians** for EW -- the 2 August 1939, LZ130 Graf Zeppelin flight.
**Note: Every field has it's weak points. Extremely few academic tract historians are radio geeks... 2/
...and being a radio geek is a better skill set for the subject matter than most PhD's not awarded to Dr Alfred Price.
LZ130 flew one of the first ELINT missions ever, against the UK Chain Home system with 25 RF engineers aboard. 3/
along with the engineers, LZ130 had broadband radio receivers covering 2 -100 MHz.
Luftwaffe General Wolfgang Martini thought that the British CH towers might be radar and put together this flight and an earlier on in May 1940.
Neither found radar. 4/
The German engineers believed that Britain was developing radars in the same 100-150 MHz
range as Germany, so the team concentrated on that band.
Up to this point, we are in the "standard narrative" historiography. 5/
This is where Adam Farson being a Ham radio guy comes in for "non-standard" history.
He understands the affect of the Mains cycle or powerline hum.
...in why General Martini's boffins missed the CH signal.
The Luftwaffe signals boffins picked up pulsed signals of CH modulated by 'mains hum' in the 20-50 MHz range, but discounted these as ionosonde signals or mains powerline hum from the UK national grid. 7/
According to Mr. Farson, the British grid was synchronous.
To avoid grid electromagnetic interference (EMI) interference, the 250 kW peak pulse CH transmitters were keyed from different points on the 50 Hz mains cycle to avoid co-channel interference between stations.
8/
This clever synchronization scheme of the CH radar builders to avoid the UK National Grid's mains cycle/powerline hum from screwing up their radar ended up camouflaging the CH signal from the Luftwaffe radar signals intercept boffins.
9/
Where have you heard that bit of electronic warfare history in the "Battle of Britain" narrative?
Even Dr Alfred Price and Dr. R. V. Jones missed this one.
/End
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Oh heck yes, AFU is hunting Russian H2O trucks! ⬇️
@secretsqrl123 has sussed out the Russian potable water supply chain and it involves a thrown together bubba engineering with palletized IBC containers used by restaurants for vegetable oil.
I've been asked to post my four appearances on Paul Woodadge's @WW2TV youtube channel to X.
This was about MacArthur's "Wild Weasel" radar hunters before the term was invented.
Dr Bellamy was PhD heavy lifter here.
Section 22 Radar Hunters
1/
This is the story of Master Technical Sergeant Dermott H. MacDonnell and how his performance as chief radar operator for Marine Air Group 23’s (MAG-23) SCR-270 radar...
The Horseshoe Nail of Victory of the Guadalcanal Air Campaign
2/
...made the difference between keeping and losing daylight air superiority over Henderson Field in the darkest days of the Guadalcanal campaign.
Incendiary devices were 10 times as effective at destroying urban areas than high explosive per unit mass per the US Strategic Bombing Surveys'.
2/
Sending twice the warhead mass of incendiaries of a unitary explosive warhead Tomahawk for the same price is 20 times as effective and requires 10 times the air defense missile warshot or gun based ammunition to protect any target.